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Control systems Pressure reducing/surplussing valves
Spare parts for the DN15 and DN20 valves The spare parts available for sizes DN15 and DN20 valves are detailed below. No other parts for these sizes are supplied as spares. Available spares Coupling A Diaphragm set Diaphragm and sealing washer. B , C Needle bearing D How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve. Example: 1 - Gasket set for a Spirax Sarco DN15 DEP7B1
express pressure valve. How to fit spares Full fitting instructions are given in the Installation and Maintenance Instructions supplied with the spare(s).
Sealing bellows assembly, sealing
Sealing bellows set
E , F , G, H
bellows gasket, bonnet gasket and head seal.
Control spring(s)
I
Seat, seat gasket, head, bonnet gasket and head seal.
Seat/head set
J , K , L , G, H
Sealing bellows gasket, bonnet gasket and seat gasket.
Gasket set
F , G , K
K L
Spindle guide, bearing bush, spindle seal 'O' ring, housing seal 'O' ring and circlip.
J
Actuator spindle guide assembly
P , R , S , T , V
H
G
4.6 72
E
I
F
D
P
A
V R
T
S
C
B
DN15 and DN20
TI-P205-01 CTLS Issue 12
Page 8 of 11
DEP7 SG Iron Excess Pressure Valve
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